Post anchor



P. o. RETZKE 2,095,832

PosT ANCHOR Filed May 14, 1956 www Fig. 5.

- Snventor P. O. Retzke.

Patented Oct. 12, 1937 PATENT OFFICE 2,095,832 POST ANGHOR Paul 0. Retzke, Omaha,.Nebr. Application May 14, 1936, serial No. 79,766

5 Claims.

The present invention relates to improvements in a post anchor and has nfor an object to provide means for securing posts of guard orv other partition rails in molded foundations.

Another object is to permit adjustment of a line of posts in the anchors and to provide accurate means for alining a row of such posts.

A further object is to provide a structure which is cheapf to construct, of few parts and which requires little labor `to use. y With the foregoing and other objects in View, the invention will be more fully described hereinafter, and will rbe more particularly pointed out in the claims appended hereto.

In the drawing, wherein like symbols refer to like or corresponding parts throughout the several views. I

Figure l isa vertical sectiontaken through an anchor with a post in position, showing parts in 20 elevation. post with part `of the vfoundation slab broken away. 1 h j Figure `3 is a horizontal section taken on the lines 3-43 of Figure 2. y

Figure 4 isa top plan View of the retainer employed, and

Figure 5 is a top plan View of the ring employed.

The present invention finds particular applicationin'conditions such as are found in partition rails on concrete floors, guard rails about openings, and hand rails on stairways. In these circumstances it is customary to use a prefabricated railing in which the posts and rails are cut to size and threaded at the factory. It is then the custom to attach the posts at the instal1a tion by drilling in the concrete or other foundation material and inserting expansible bolts. 4Such construction as this has been considered necessary because of the difficulty of molding suitable sockets into the foundation as it is formed and also because of the exactness in positioning of these sockets required.

As will be seen from the following descriptionthe device contemplated by the present invention is placed in the foundation as it is poured. A series of such sockets are placed in the approximate positions of the posts in the desired railing and the nal adjustments and alinement of the posts are made after the foundation has solidified and the sockets have become firmly anchored.

Referring now to Figure 1, IIJ designates a post 55 of the railing to which rails II and I2 are at- Figure 2 Ais a side relevation of the anchor and tached.V The post I is anchored to the foundation slab I3 of concrete or other moldable material Which is poured over the flooring I4. Ernbedded in the foundation slab I3 is the cup or socket I5 which is threaded internally and provided with radially outstanding lugs I6 which engage with the material of the slab and which also furnish attaching lugs for the supports I1. As shown the socket I5 has four of such lugs equally spaced around its circumference and there are two of the supports II at right angles to one another beneath the socket and attached to the lugs I6. AThe supports I'I are made of light, flexible metal which may be bent to the shape desired. It is preferred to bend the supports l1 to provide a leg and foot at each end. The `relation between the length of the leg and the length of the foot determines the height at which the socket stands 'above the oor I4. Thus, if it is desired to set the socket for a shallow foundation slab I3 more of the support will beturned into the foot, whereas if it is desired to set the socket at a higher position less of the support will be used for the foot and more for the leg. To permit attachment of the support to the floor at various positions a series of nail holes I8 is provided.

The post Ill is threaded at its lower end .to receive the bottom ring I9 and the lock nut 20. The socket l5 is made larger than the post I0 and the ring VI9 so that the position of the post in the socket may be varied. To retain the post and ring inthe"desiredpositionv a retainer `2| is ex ternally threaded and placed in the top of the socket I5. The retainer 2| has a large central opening which permits movement of the Ypost in the socket.

In operation the socket I5 is placed on the floor I4 in the approximate position; intended for the post II). The support I1 is fastened to the floor I4 by means of nails or the like 22 inserted through the hole I8 in the foot formed by bending the end of the support. The height of the socket I5 is adjusted according to the intended thickne-ss of the slab as before described. Now with the socket and support in position the concrete or other slab material is poured to a depth sufficient to bring the surface ush with the top of the socket. The concrete flows around the support and the sides and bottom of the socket 50 and as it hardens holds them fast in the slab. In this pouring operation it may be convenient to cover the opening of the socket I5 to prevent accidental entry of material therein. In anchoring the socket the projecting lugs I6 will be seen to 55 afford extra engaging surface. The post I is now inserted into the socket I after placingv on the threaded end thereof the lock nut 20 and the ring I 9. If the central diameter of the retainer 2| is less than that of the external diameter of the ring I9 it will of course be necessary to slide this member. over the end of the post between the lock nut and the ring. This assembly is placed in the socket and the retainer screwed partway down. When the other posts in the railing are similarly inserted and the railing attached between them Vthe nal positions of the posts may be ascertained. Due to the movability of the post in the socket I5 it is only necessary to slide the post and ring to. its proper position in the socket and then tighten the retainer 2| down upon the ring I9 tol hold the position. The lock nut 20 is then tightened on top of the retainer and a permanent anchoring connection is obtained. Vertical adjustment of the post is also obtainable by varying the positions of the ring I9 and lock nut 20 upon the threaded end of the post.

For engagement with suitable wrenches the ring I9 is provided'in its under surface with a number of recesses 23. Likewise the upper surface of the retainer 2I has formed therein Va similar set of recesses 24. The lock nut 20 as will be seen in Figure 3 is formed of a circular lower portion and a back stepped hexagonal upper portion for engagement with a tightening Wrench.

It is obvious that various changes and modications may be made in the details of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof, such changes' and modifications being restricted only by the scope of the following claims:

What is claimed is:

1. A post anchor for use with molded slabs and threaded posts, comprising a socket threaded internally and having radially extending lugs for engagement in therslab, a support for the socket for holding the same in position during the molding of the slab, a ring threaded internally and fitting over the end of the post, said socket'being larger than said ring and post to permit movement thereof in the socket, an externally threaded retainer engaging the threads of said socket and provided with a central opening of greater diameter than the post and adapted to hold said ring in any position in the socket, and a lock nut on said post above the retainer.

2. A post anchor comprising a socket adapted to be moulded into a concrete slab and having a relatively large post receiving portion and provided with adjustable supporting portions adapted to be embedded in the concrete for supporting the socket at the desired height relatively to the upper surface of the slab, a pair of rings for threaded engagement on the lower end of a post and being of a size less than that of said post receiving portion of the socket for eccentric adjustment therein, a retainer ring threaded into said socket for vertical adjustment therein and adapted to engage between said rings for the post, said last named rings adapted to be turned on the post for clamping engagement with the retainer ring to hold the post in vertically and horizontally adjustedY positions.

3. A post anchor comprising an interiorly threaded socket adapted to be embedded in` a concrete slab, an annulus threaded into said socket, said annulus having a central opening therethrough relatively larger than the diameter of the post whereby the post may be shifted laterally within said opening, and clamping means engageable with the post and with said annulus from above and below thereof to hold the post in adjusted position within said socket.

4. In combination, a post provided with exterior threads adjacent the lower end thereof, an interiorly threaded socket adapted to be embedded in a concrete slab, an annulus threaded into said socket and having a central opening therethrough relatively larger than the diameter of the post whereby the post may be shifted in a horizontal plane within said socket, and a pair of clampingmembers carried by the post and engageable against opposite faces of said annulus to hold the post in adjusted position within the socket.

5. In combination, a post provided with exterior threads adjacent the lower end thereof, a socket adapted to be embedded in a concrete slab, a member carried by said socket having an opening of a diameter relatively Vlarger than the diameter of the post whereby the lower end of the post may be shifted laterally within said socket, and a pair of clamping members carried by the post and engageable against opposite faces of said member to hold the post in adjusted position Within the socket.

PAUL O. RETZKE. 

